Mercurial > hg > orthanc
annotate Core/MultiThreading/SharedMessageQueue.h @ 3349:ef18ea68a362
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| author | Alain Mazy <alain@mazy.be> |
|---|---|
| date | Thu, 18 Apr 2019 15:52:56 +0200 |
| parents | 4e43e67f8ecf |
| children | 94f4a18a79cc |
| rev | line source |
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| 450 | 1 /** |
| 2 * Orthanc - A Lightweight, RESTful DICOM Store | |
| 1900 | 3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics |
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4 * Department, University Hospital of Liege, Belgium |
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5 * Copyright (C) 2017-2019 Osimis S.A., Belgium |
| 450 | 6 * |
| 7 * This program is free software: you can redistribute it and/or | |
| 8 * modify it under the terms of the GNU General Public License as | |
| 9 * published by the Free Software Foundation, either version 3 of the | |
| 10 * License, or (at your option) any later version. | |
| 11 * | |
| 12 * In addition, as a special exception, the copyright holders of this | |
| 13 * program give permission to link the code of its release with the | |
| 14 * OpenSSL project's "OpenSSL" library (or with modified versions of it | |
| 15 * that use the same license as the "OpenSSL" library), and distribute | |
| 16 * the linked executables. You must obey the GNU General Public License | |
| 17 * in all respects for all of the code used other than "OpenSSL". If you | |
| 18 * modify file(s) with this exception, you may extend this exception to | |
| 19 * your version of the file(s), but you are not obligated to do so. If | |
| 20 * you do not wish to do so, delete this exception statement from your | |
| 21 * version. If you delete this exception statement from all source files | |
| 22 * in the program, then also delete it here. | |
| 23 * | |
| 24 * This program is distributed in the hope that it will be useful, but | |
| 25 * WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 26 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 27 * General Public License for more details. | |
| 28 * | |
| 29 * You should have received a copy of the GNU General Public License | |
| 30 * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
| 31 **/ | |
| 32 | |
| 33 | |
| 34 #pragma once | |
| 35 | |
| 36 #include "../IDynamicObject.h" | |
| 37 | |
| 451 | 38 #include <stdint.h> |
| 450 | 39 #include <list> |
| 40 #include <boost/thread.hpp> | |
| 41 | |
| 42 namespace Orthanc | |
| 43 { | |
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44 class SharedMessageQueue : public boost::noncopyable |
| 450 | 45 { |
| 46 private: | |
| 47 typedef std::list<IDynamicObject*> Queue; | |
| 48 | |
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49 bool isFifo_; |
| 450 | 50 unsigned int maxSize_; |
| 51 Queue queue_; | |
| 52 boost::mutex mutex_; | |
| 53 boost::condition_variable elementAvailable_; | |
| 452 | 54 boost::condition_variable emptied_; |
| 450 | 55 |
| 56 public: | |
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57 explicit SharedMessageQueue(unsigned int maxSize = 0); |
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58 |
| 450 | 59 ~SharedMessageQueue(); |
| 60 | |
| 61 // This transfers the ownership of the message | |
| 62 void Enqueue(IDynamicObject* message); | |
| 63 | |
| 64 // The caller is responsible to delete the dequeud message! | |
| 65 IDynamicObject* Dequeue(int32_t millisecondsTimeout); | |
| 452 | 66 |
| 67 bool WaitEmpty(int32_t millisecondsTimeout); | |
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68 |
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69 bool IsFifoPolicy() const |
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70 { |
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71 return isFifo_; |
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72 } |
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73 |
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74 bool IsLifoPolicy() const |
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75 { |
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76 return !isFifo_; |
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77 } |
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78 |
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79 void SetFifoPolicy(); |
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80 |
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81 void SetLifoPolicy(); |
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82 |
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83 void Clear(); |
| 450 | 84 }; |
| 85 } |